Here s the open energy monitor port. @BDub will recognise some bits of code. I’ve stuck everything in pretty much as is. Spark/Pi/Arduino. I’ll refine it when I have time. I particularly want to get to the bottom of the ADC behaviour and find out how fast I can sample ready for my next project as soon as I get my next Spark.
Before anyone mentions capacitors - that is what the little rectangular things are on all the inputs. 
They don’t just reduce the input impedance of the ADC they make debouncing the digital inputs much more robust.
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